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4 years ago

Solve the system by the elimination method 7x+5y=-25 5x+3y=-23

Mathematics

1 answer:

aksik [14]4 years ago

5 0

Step-by-step explanation:

7x+5y=25 ×3 7×-1.5+5y=25

5x+3y= -23 ×5 -10.5 +5y =25

5y= 25 + 10.5

21x+15y=75 5y= 35.5

25x+15y=69 y= 7.1

-4x=6

x=-1.5

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